Hydro-extractor



UNITED. STATES 1 WILLIAM MOCHESNEY, OF LONDON, ENGLAND.

HYDRO-EXTRAC'IOR.

1 Specification of Letters Patent.

Application filed August 11, 1920. Serial No. 402,917.

To all whom it may concern Be it known that I, WILLIAM MoCHEs- NEY, a British subject, residing at 64 Mill Hill road, Acton, ,London, W. 3, England, have invented certain new anduseful Improvements in Hydro-Extractors, of which the following is a specification. i

This invention has forits object to provide a self-balancing mounting for a centrifugal receiver adapted for use in laundries, sugar refineries, creameries and the like.

A further object of the inventlonis to "provide a satisfactory solid support of suflicient strength for the rotary receiver.

Theinvention is illustrated in the accompanying drawing in which Figure 1 shows a hydro-extractor as used in a laundry, and Fig. 2 a detail.

Referring now to the'drawing,,the extractor comprises a centrifugal receiver or basket 1 mounted within a protecting cage,2 by means of a mounting forming the subject of this invention. The, mounting is supported on a strong stationary pillar 3 which may be made, of any suitable strength according to the design and purpose of the extractor. The pillar is formed integral with a platet which is firmly supported on a solidly built pedestal 5. sThe pillar is surmounted by a flanged cap 6, the lower flange of which receives the head of the pillar and the upper flange forms a housing for a orizontally arranged ball-race 7 which sup.- ports and permitsrotation of the receiver 1. The base 8 of the receiver is annular and is firmly attached to a solidly-formed tubular uprising neck 9 provided with a terminal uprising flange 10 and an inwardlydirected flange 11 extending from the topof said neck. An annular weighted ring 12 is fitted underneath the outer edge ofthe base 8 to lower the center of gravity of the receiver, within the pillar 3 and neck 9, and is provided with a flanged pulley adaptedto receive a driving belt 14, and with a brakedrum 15.

' The shaft is reduced atits lower part and is keyed to receive the feather 16 of a driving disk 17 shown separately at Fig. 2. The driving disk is provided with a plurality of ears 18 which in operative position engage A driving shaft 13 passes centrally to, rotate, centrifugal force acting on the unbalanced fraction of load'will operate to with a 'loose'fit in slots 10 formed in the vertical flange 10 of the-neck 9.

The receiver is mounted on the ball-race 7 by means of an annular rubber buffer .19

seated below the horizontal flange 11, and is centered by means of a second buffer 20 seated above said flange and interposed be-' tween the vertical flange 10 and a flanged sleeve 21 which is, slidablyand loosely fitted on the shaft 13 as shown. i

Patented Dec. 21, 1920.

The driving disk 17 is, held in place by a nut 19 adjustably screwed to a screwed portion of the reduced part of the shaft 13.

[The slots 1O are cut so deep and the in- 'atsuch a point that the receiver 1 is free to tilt and can also'rnove a certain distance radially in the plane of rotation without positively engaging with the disk or shaft 13, the buffers 19, 20 providing an elastic resistance to' such tilting'and/or a movement. The axis of tilting due'to uneven load is in the region 'of the b uflers 19, 20, and the design of the receiver'is such that the center of gravity of the receiver when loaded is, owing to the provision of the annular weight 12, definitely situated below the said axis of tilting. Asthebuffers rotate withthe receiver and the upper disk of the ball-race 7, the deformation of the buffers due to tilting is constant for a given tilt, so that continual and repeated straining and unstraining of the buffers is not necessitated as is the case when the buffers do not form part of the rotating mechanism. The supporting columnl3 enters 7 well within the movingmasses so that. angle of tilt for a given error in loading is reduced to a minimum.

In operation, assuming the receiver to be unevenly loaded, it will be tilted with the heavier side lower,owing.to the unbalanced fraction of the load. As the receiver begins restore the tilt, as the. center of gravityof the moving mass is, owing to the provision higher values, owingto the well known tendency of rapidly rotating masses to center themselves, the receiver will gradually move radially inward in the plane of its rotation, and against the resistance of part of theupper buffer 20 so as to bring its center of gravity to a point lying upon the axis of its rotation. 4 a

Thereafter, the receiver'will remain selfcentered and will rotate steadily and horizontall It is understood that the driving disk 1 is a loose fit throughout so as'to permit the movement above described, and that the length of the flange is such as to permitian adequate amount of movement as requisite for normal or desired fractional unevennessin loading.

I claim 1. In a hydro-extractor, a receiver, an

' axialfreentrant neck in the base of said receiver, a rotary shaft passing through said neck, meansfor transmitting the rotary movement ofv said shaft to said receiver, a rotary element of a bearing supporting said 7 receiver by means of said neck, a resilient buffer fitted within said neck interposed be- I tween the said-rotary element andthe supporting surfaceof the said neck, the receiver being capable oftilting by a rolling movement on said buffer, and also of moving radially in the plane of rotation relatively to said rotary element, a ndmean s for centralizing said receiver with relatlon to the shaft.

2.- In a hydro-extractor, a rotary receiver, an axial reentrant neck in thebase. of said receiver, an inwardly-extending flange at the top of said neck forming asupporting surface for said receiver, a rotary horizontal element of a; bearing situated within said neck, and supporting said receiver, a resilient buffer held within the neck and interposed between said rotary element and said flangepermitting said receiver to tilt by a rolling movement on said buffer, centralizing means forthe receiver arranged above the buffer and means, attached to said receiver for bringing the center of gravity of the loaded receiver below the axis of tilt.

3. In a hydro-extractor, a rotary receiver, an axial reentrant neck in the base of said receiver,'a rotary shaft passing through said neck, means for transmitting the motion of said'shaft to said receiver, an inwardly directed flange on said neck forming a supporting surface for said receiver, an up- ,7 wardly extending partof said neck, a horizontal rotary element of a bearing supporting said receiver by means of the said inwardly directed flange, a resilient buffer interposed between said flange and said rotary element, a second resilient buffer situated between the said upward part of saidjneck and said rotary shaft, a slidable sleeve interposed between said buffer and said shaft,

the said receiver being: adapted to move'radially in the plane of rotation against the resistance of said buffer, and the buflers permitting the receiver to tilt by means of the parts of said neck executing a rolling movement on said buffers.

between the said upward partofsaidneck andsaid rotary shaft, a slidablesleeve' interposed between said buffer and said shaft, the

. said receiverbeing adjusted to move radially in theplane of rotation against the re sistanceof said buffer, and the buffers permitting the receiver to tilt'by means of the parts-of said neck executing a rolling movement on'said buffers, and means attached-to said receiver to bring the center-of gravity i of the loaded receiver below the axis oftilt.

5. In a hydro-extractor, a pedestal, ahollow strong column supported from said pedestal, an annular horizontal ball-race supported on said column, a receiver having a' reentrant neck centrally situated in its base, said neck terminating in inwardly and upwardly directed flanges, a resilientbufl'er supported bysaid ball race, said buffer sup porting said receiver by means of the inwardly directed flange on said neck, arotary shaft passing through said neck and ballrace and column, means for transmitting the :motion of said shaft to said receiver, a

resilient buffer interposed between said upwardly-directed flange and said shaft, a slidable sleeve situated between said buffer and said shaft, the receiver being adapted to tilt by a rolling movement of said gparts upon said buflers about an axis which is higher'than the center ofegravityoflthe loaded receiver, and being further capable of a slightradial movement inthe plane-of rotation relativelyto said ball-racer,

6. In a hydro-extractor, a-pedestal, a hollow strong column supported from saidpedestal, an annular horizontal ball-race supsaid neck being less in heightthan half the height of said receiver and terminating in i said neck, and ball-race and column, means 1 7O 4. In a hydro-extractor, a rotary receiver,

ported on said column, a receiver having. a reentrantneck centrally situated in its base,

for transmitting the motion of said shaft to said receiver, a resilient bufi'er interposed between said upwardly-directed flange and said shaft, a slidable sleeve situated between said bufier and said shaft, the receiver being adapted to tilt by a rolling movement of said parts upon said bufi'ers about an axis which is higher than the center of gravity of the loaded receiver, and being further capable of a slight radial movement in the 10 plane of rotation relatively to said ball-race, and an annular weight carried by the base of said receiver. n

In testimony whereofI aflix my signature.

WM. MoCHESNEY. 

